September Weather in Iuna, Brazil

Last updated: August 22, 2025

In Iuna, Brazil, the average temperature in September hovers around 21°C (70°F), with a comfortable range from a minimum of 11°C (52°F) to a sunny maximum of 34°C (94°F). Expect 29 mm (1.1 in) of precipitation spread over 5 days, adding a touch of freshness to the air, while average humidity maintains a pleasant level at 72%. Enjoy the perfect blend of warmth and occasional rain in this vibrant locale!

September Temperature in Iuna

In September in Iuna, the average temperature is 21°C (70°F), with maximums reaching up to 34°C (94°F) and minimums dropping as low as 11°C (52°F). This pleasant climate makes it an ideal time for outdoor adventures and sightseeing.

September Weather in Iuna: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Iuna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iuna, September typically has an average temperature of 21°C (70°F), with highs reaching up to 34°C (94°F) and lows dropping to around 11°C (52°F).

Data source: Temperature data for Iuna generated using information from the Copernicus Climate Change Service.

September Precipitation in Iuna

In Iuna in September, the total precipitation amount is 29 mm (1.1 in) recorded over a span of 5 days.

September Precipitation Trends in Iuna

The chart displays monthly precipitation patterns in Iuna, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Iuna, September typically receives around 29 mm (1.1 inches) of precipitation spread over approximately 5 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Iuna

In Iuna in September, humidity is 72%. With an average temperature of 21°C (70°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities a bit sticky and sweaty, but still manageable for traveling if you stay hydrated and take regular breaks in the shade.

September Average Humidity in Iuna

This chart illustrates the average monthly humidity levels in Iuna, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Iuna is approximately 72%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Iuna

In Iuna in September, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Iuna.

Maximum UV Index Levels in Iuna for September

The chart shows the monthly maximum UV Index (UVI) for Iuna in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Iuna typically reaches 12, which falls under the extreme exposure category.

Data source: Iuna September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How September Weather in Iuna Compares to Other Months

Weather in Iuna varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Iuna, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Iuna, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	24°C (75°F)	76 mm (3.0 inches)	80%	extreme
February Weather	23°C (74°F)	168 mm (6.6 inches)	85%	extreme
March Weather	23°C (74°F)	120 mm (4.7 inches)	86%	extreme
April Weather	22°C (71°F)	57 mm (2.3 inches)	85%	extreme
May Weather	20°C (67°F)	37 mm (1.5 inches)	82%	very high
June Weather	19°C (66°F)	11 mm (0.4 inches)	81%	high
July Weather	18°C (64°F)	10 mm (0.4 inches)	79%	very high
August Weather	18°C (65°F)	19 mm (0.7 inches)	75%	very high
September Weather	21°C (70°F)	29 mm (1.1 inches)	72%	extreme
October Weather	22°C (72°F)	111 mm (4.4 inches)	66%	extreme
November Weather	21°C (71°F)	163 mm (6.4 inches)	69%	extreme
December Weather	23°C (73°F)	176 mm (6.9 inches)	72%	extreme